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Finding the Fourth Proportional to 624,879.70, 862,334.04 and 338,400.52

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Solution

The fourth proportional to 624,879.70, 862,334.04 and 338,400.52 is: 466,992.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,879.70 : 862,334.04 = 338,400.52 : x
  2. Step 2: Convert to fraction form
    624,879.70/862,334.04 = 338,400.52/x
  3. Step 3: Cross multiply
    624,879.70x = 862,334.04 × 338,400.52
  4. Step 4: Simplify right side
    624,879.70x = 291,814,287,549.70
  5. Step 5: Solve for x
    x = 291,814,287,549.70/624,879.70
  6. Step 6: Final answer
    x = 466,992.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.